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Successful use of wooden roof bolts in Stony Point Mine, Stony Point Coal Co., Hopkins County, Ky.
Mine-timber preservation by the collar method :progress report 1
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Published Year
1950-1959 (2) *
Subject
Mine timbering (2) *
Coal mines and mining--Kentucky--Hopkins County (1)
Mine roof bolting (1)
Author
Kelly, L. W. (1)
Roberts, Edward. (1)